Glossary Terms

WordPress performance

WordPress performance is how quickly and efficiently a site loads and responds, measured mainly through Core Web Vitals (LCP, INP, CLS), Time to First Byte, and total page weight. Improving it works across several layers at once: the server (managed hosting with page and object caching, a current PHP version, enough memory), the database (fewer post revisions, object caching to cut repeat queries), asset delivery (minifying CSS and JavaScript, deferring non-critical scripts, serving WebP images, using a CDN), and code quality (removing unused plugins, loading assets only where they're needed). It's worth the effort because the payoff is concrete: Google and Deloitte found a one-second improvement in mobile load time raised conversions by an average of 27 percent, which makes performance a business concern, not just technical tidiness. <a href="/posts/wordpress-performance-lighthouse-scores/">Lighthouse scores vs real WordPress performance: what actually matters</a> separates the score from the experience.